Der Spröd-duktil-Übergang in ultrafeinkörnigem Wolfram

• Format: eBook
• Language: German
• Published: KIT Scientific Publishing 2023
• Series: Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie
• Subjects: Mechanical engineering and materials; kink pair mechanism; Arrhenius activation energy; brittle-ductile transition; ultrafine grained; Kinkenpaarmechanismus; Arrhenius-Aktivierungsenergie; Spröd-duktil-Übergang; ultrafeinkörnig; tungsten; Wolfram
• Online Access: Open Access: DOAB: description of the publication; Open Access: DOAB, download the publication
• Physical Description: 1 online resource (394 p.)
• ISBN: 9783731512646; KSP/1000153067
• Access: Open Access

High brittle-ductile transition temperatures preclude the use of conventionally manufactured tungsten (W) as a structural material. Ultrafine grained (UFG) W materials, however, exhibit the brittle-ductile transition at very low temperatures and consequently exhibit room-temperature ductility. The correlative microstructure analysis revealed a strong correlation between the transition temperature and the mean grain boundary spacing along the crack front.